| Fullname: | Óscar Yaroslav Mascorro Ábrego |
| Birth Date: | 11 February 1980 |
| Birth Place: | Ciudad Victoria, Tamaulipas, Mexico |
| Height: | 1.80 m |
| Position: | Defender |
| Youthyears1: | 1994–1996 |
| Youthclubs1: | Monterrey |
| Years1: | 1998 |
| Clubs1: | Monterrey |
| Caps1: | 1 |
| Goals1: | 0 |
| Years2: | 1999–2000 |
| Clubs2: | Toros Neza |
| Caps2: | 27 |
| Goals2: | 0 |
| Years3: | 2000 |
| Clubs3: | UNAM |
| Caps3: | 9 |
| Goals3: | 0 |
| Years4: | 2000–2005 |
| Clubs4: | Puebla |
| Caps4: | 161 |
| Goals4: | 6 |
| Years5: | 2006–2013 |
| Clubs5: | San Luis |
| Caps5: | 108 |
| Goals5: | 3 |
| Years6: | 2010–2011 |
| Clubs6: | → Veracruz (loan) |
| Caps6: | 23 |
| Goals6: | 4 |
| Years7: | 2011–2013 |
| Clubs7: | → León (loan) |
| Caps7: | 9 |
| Goals7: | 0 |
| Years8: | 2013–2015 |
| Clubs8: | Veracruz |
| Caps8: | 48 |
| Goals8: | 2 |
| Club-Update: | 15 December 2014 |
Óscar Yaroslav Mascorro Ábrego (born 11 February 1980) is a Mexican former professional footballer who played as a defender.
León